JPH02304814A - Round type electric cable for oil well - Google Patents
Round type electric cable for oil wellInfo
- Publication number
- JPH02304814A JPH02304814A JP1126124A JP12612489A JPH02304814A JP H02304814 A JPH02304814 A JP H02304814A JP 1126124 A JP1126124 A JP 1126124A JP 12612489 A JP12612489 A JP 12612489A JP H02304814 A JPH02304814 A JP H02304814A
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- weight
- parts
- insulator
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003129 oil well Substances 0.000 title claims description 20
- 239000012212 insulator Substances 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000000806 elastomer Substances 0.000 claims abstract description 9
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 239000011630 iodine Substances 0.000 claims description 4
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010779 crude oil Substances 0.000 claims description 2
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims description 2
- 229920001875 Ebonite Polymers 0.000 claims 1
- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 5
- 230000008595 infiltration Effects 0.000 abstract 2
- 238000001764 infiltration Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
この発明は電カケープル、特に油井用丸型電カケープル
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric cable, particularly a round electric cable for oil wells.
[従来の技術]
油井から原油を汲み上げる採油ポンプに地上から電力を
供給するために、油井用電気ケーブルが広く使用されて
いる。以下、この油井用電気ケーブルを第2図の横断面
図を参照して説明する。導体1上にエラストマーゴムを
被覆した絶縁体2上に補強層3を施した電力線心3本を
撚り合せた上にエラストマーゴムのシース4を充実押出
しし、さらにこの外周にラセン管鎧装5を設けて構成し
たものが一般的である。[Prior Art] Oil well electrical cables are widely used to supply power from the ground to oil extraction pumps that pump crude oil from oil wells. This oil well electric cable will be explained below with reference to the cross-sectional view of FIG. 2. Three power wire cores each having a reinforcing layer 3 applied to an insulator 2 in which a conductor 1 is coated with elastomer rubber are twisted together, a sheath 4 made of elastomer rubber is fully extruded, and a helical tube sheath 5 is further applied around the outer periphery of the wire core. It is common to have one.
[発明が解決しようとする課題]
油井用電気ケーブルは、その性質上過酷な雰囲気中で使
用されるため、ケーブル内部に高温の油やガスが侵入し
易く、このため絶縁された電力線心とシース間に高温の
ガスが侵入しにくいようそれぞれの材料が密着している
ことが望ましいが、前述したような従来のケーブルでは
絶縁体とシースの密着が不十分なため、どうしてもケー
ブルの使用運転中に高温、高圧力のガスが侵入してしま
う。一方、採油ポンプは保守の目的で定期的に地上へ引
き上げられるが、その際、圧力および温度が急激に低下
するため、侵入していたガスが膨張し、これによクレー
スが膨張して破断してしまうような不具合が起こり易い
。[Problems to be Solved by the Invention] Electrical cables for oil wells are used in harsh atmospheres due to their nature, so high temperature oil and gas easily enter the inside of the cables. It is desirable for the materials to be in close contact with each other to prevent hot gas from penetrating between them, but in conventional cables as mentioned above, the adhesion between the insulator and sheath is insufficient, so it is inevitable that High temperature and high pressure gas may enter. On the other hand, oil extraction pumps are periodically raised to the ground for maintenance purposes, but at that time, the pressure and temperature drop rapidly, causing the invading gas to expand, causing the crease to expand and break. It is easy to cause problems such as
この発明は、このような点に鑑みてなされたもので、絶
縁体を被覆した電力線心とジャケットを接着させ、その
間隙を極小にして高温の油やガスの侵入を防ぐことがで
きる油井用丸型電気ケーブルを提供することを目的とす
る。This invention was made in view of these points, and it is an oil well round that can bond a power line core coated with an insulator and a jacket to minimize the gap between them to prevent the intrusion of high temperature oil and gas. The purpose is to provide type electrical cables.
[課題を解決するための手段および作用]この発明は、
油井用丸型電気ケーブルにおいて、異なる2種のエラス
トマーゴムを2層に押出した絶縁体と、この絶縁体上に
補強層を施し、これらの電力線心3本を撚り合せた上に
、異なる2種のエラストマーゴムを押出し被覆して構成
したことを特徴とする。[Means and effects for solving the problem] This invention has the following features:
In a round electrical cable for oil wells, an insulator is made by extruding two different types of elastomer rubber into two layers, a reinforcing layer is applied on top of this insulator, three of these power wire cores are twisted together, and two different types of elastomer rubber are extruded. It is characterized by being constructed by extrusion coating of elastomer rubber.
従って、絶縁体の外層の薄皮部とシースの内層の薄皮部
は接着力の優れたエチレンプロピレンゴムな用いたこと
により強固に接着するように構成され、ガスの侵入を防
ぎ、特に耐圧力性を大幅に向上させた油井用丸型電気ケ
ーブルとなる。Therefore, the thin skin part of the outer layer of the insulator and the thin skin part of the inner layer of the sheath are made of ethylene propylene rubber, which has excellent adhesive strength, so that they are firmly bonded to each other, preventing gas from entering, and especially improving pressure resistance. This is a significantly improved round electrical cable for oil wells.
し実 施 例]
以下、図面に基づいてこの発明の詳細な説明する。第1
図は油井用丸型電気ケーブルの横断面図を示し、導体1
は絶縁体の硬質の内層2aと軟質で接着し易いエチレン
プロピレンゴムの薄皮の外層2bが同時に押出しされて
被覆される。そして、この上に耐熱および耐油性の粗巻
きの編組で補強層3が施されて電力線心が形成される。Embodiments] The present invention will be described in detail below based on the drawings. 1st
The figure shows a cross-sectional view of a round electrical cable for oil wells, with conductor 1
A hard inner layer 2a of an insulator and a thin outer layer 2b of soft and easily adhesive ethylene propylene rubber are simultaneously extruded and coated. Then, a reinforcing layer 3 made of a heat-resistant and oil-resistant loosely wound braid is applied thereon to form a power line core.
これは、絶縁体外層2bとこれらの上に形成されるシー
ス内層4aとを物理的に接触させるためである。This is to bring the insulator outer layer 2b and the sheath inner layer 4a formed thereon into physical contact.
このように形成された電力線心3本を撚り合わせた上に
薄皮のシース内層4aとシース外層4bを同時に押出し
被覆し、さらにこの外周にラセン管鎧装5が施されて構
成される。The three power wire cores thus formed are twisted together, a thin sheath inner layer 4a and a sheath outer layer 4b are simultaneously extruded and coated, and a helical tube sheath 5 is further applied around the outer periphery.
上記絶縁体内層2aとシース外層4bはいずれも耐油性
、耐熱性に優れ、また、硬質で機械的強度のある材料で
形成するようにしている。この材料としては、例えばヨ
ウ素価20以下のエチレンプロピレンゴム100重量部
に対し、シアヌレート系架橋助剤2〜10重量部、ビニ
ルシラン処理焼成クレー50〜150重量部を含有する
組成物によって形成するとよい。Both the insulating inner layer 2a and the sheath outer layer 4b are made of a material that has excellent oil resistance and heat resistance, and is hard and mechanically strong. This material may be formed from a composition containing, for example, 100 parts by weight of ethylene propylene rubber having an iodine value of 20 or less, 2 to 10 parts by weight of a cyanurate crosslinking aid, and 50 to 150 parts by weight of vinylsilane-treated calcined clay.
また、絶縁体の薄皮の外層2bと薄皮のシース内層4a
は粘着力の優れた配合によって形成する。この材料とし
ては、例えばヨウ素価20以下のエチレンプロピレンゴ
ム100重量部に対し、シアヌレート系架橋剤2〜10
重量部、焼成クレー50〜150重量部と無水けい酸1
〜10重量部を含有する組成により形成するとよい。In addition, a thin outer layer 2b of an insulator and a thin inner sheath layer 4a
is formed by a formulation with excellent adhesive strength. As for this material, for example, 100 parts by weight of ethylene propylene rubber with an iodine value of 20 or less and 2 to 10 parts of cyanurate crosslinking agent are used.
Parts by weight, 50 to 150 parts by weight of calcined clay and 1 part by weight of silicic anhydride
It is preferable to form the composition with a composition containing ~10 parts by weight.
従って、硬質の絶縁体内層2aと硬質のシース外層4b
に挟まれた薄皮の絶縁体外層2bと薄皮のシース内層4
aに軟質で接着しやすいエチレンプロピレンゴムを薄皮
に同時押出し被覆することにより接着効果をより高める
ぬることが可能となる。また、絶縁体2 a、、2 b
の補強層3として粗巻きの例えばナイロン66の編組を
施すことにより絶縁体2a、2bとシース4a、4bが
直接強固に接触するようにしている。Therefore, the hard insulator inner layer 2a and the hard outer sheath layer 4b
A thin insulator outer layer 2b and a thin sheath inner layer 4 sandwiched between
By co-extruding a thin layer of ethylene propylene rubber, which is soft and easily adheres to a, it becomes possible to further enhance the adhesion effect. In addition, insulators 2 a, 2 b
By applying a coarsely wound braid of, for example, nylon 66 as the reinforcing layer 3, the insulators 2a, 2b and the sheaths 4a, 4b are directly and firmly contacted.
なお、上記実施例においては線心数を3本の例について
説明したが、これに限ることなく複数本とすることがで
きることは勿論である。In the above embodiment, an example in which the number of wire cores is three was explained, but it is needless to say that the number of wire cores is not limited to this, and it is possible to use a plurality of wire cores.
[発明の効果]
以上説明したとおり、この発明の油井用丸型電気ケーブ
ルは絶縁体の外層とシースの内層を接着し易くしたため
、絶縁体とシースとの間へガスの侵入を防ぐことができ
、特に圧力の高い油井においても使用が可能である優れ
たケーブルとなる。[Effects of the Invention] As explained above, in the oil well round electric cable of the present invention, the outer layer of the insulator and the inner layer of the sheath are easily bonded together, so that gas can be prevented from entering between the insulator and the sheath. This makes it an excellent cable that can be used especially in oil wells with high pressure.
第1図は、この発明の油井用油井用爪ケーブルの構成を
示す横断面図、
第2図は、従来の油井用油井用爪ケーブルの構成を示す
横断面図である。
1・・・導体
2・・・絶縁体
2a・・・絶縁体内層
2b・・・絶縁体外層
3・・・補強層
4・・・シース
4a・・・シース内層
4b・・・シース外層
5・・・ラセン管鎖装FIG. 1 is a cross-sectional view showing the configuration of an oil well hook cable for use in an oil well according to the present invention, and FIG. 2 is a cross sectional view showing the configuration of a conventional oil well hook cable for use in an oil well. 1... Conductor 2... Insulator 2a... Insulator inner layer 2b... Insulator outer layer 3... Reinforcement layer 4... Sheath 4a... Sheath inner layer 4b... Sheath outer layer 5.・・Spiral pipe chaining
Claims (3)
井用丸型電気ケーブルにおいて、異なる2種のエラスト
マーゴムを2層に押出した絶縁体と、その絶縁体上に補
強層を施し、さらに、その電力線心を複数本撚り合せた
上に異なる2種のエラストマーゴムソースを2層に押出
し、その上にラセン管鎧装を設けて構成した油井用丸型
電気ケーブル。(1) A round electric cable for oil wells that supplies power to oil extraction pumps that pump up crude oil has an insulator made of two extruded layers of two different types of elastomer rubber, a reinforcing layer on top of the insulator, and A round electrical cable for oil wells, consisting of multiple power wire cores twisted together, two different types of elastomer rubber source extruded into two layers, and a helical tube sheath installed on top.
性の優れた硬質のエラストマーゴムにより形成され、さ
らに絶縁体の外層の薄皮部およびシースの内層の薄皮部
が、それぞれ粘着力の優れた組成物より形成された構造
を特徴とする請求項1記載の油井用丸型電気ケーブル。(2) The inner layer of the insulator and the outer layer of the sheath are made of hard elastomer rubber with excellent oil and heat resistance, and the thin skin of the outer layer of the insulator and the thin skin of the inner layer of the sheath each have excellent adhesive strength. The round electrical cable for oil wells according to claim 1, characterized in that the structure is formed from a composition comprising:
以下のエチレンプロピレンゴム100重量部に対し、シ
アヌレート架橋助剤2〜10重量部、ビニルシラン処理
焼成クレー50〜150重量部を含有する組成物より形
成され、さらに絶縁体の外層の薄皮部およびシース内層
の薄皮部がヨウ素価20以下のエチレンプロピレンゴム
100重量部に対しシアヌレート系架橋助剤2〜10重
量部、焼成クレー50〜150重量部と無水けい酸1〜
10重量部または有水けい酸1〜10重量部を含有する
組成により形成される請求項1および請求項2記載の油
井用丸型電気ケーブル。(3) The inner layer of the insulator and the outer layer of the sheath have an iodine value of 20
It is formed from a composition containing 100 parts by weight of the following ethylene propylene rubber, 2 to 10 parts by weight of a cyanurate crosslinking aid, and 50 to 150 parts by weight of vinylsilane-treated calcined clay, and further includes the thin skin part of the outer layer of the insulator and the inner layer of the sheath. 2 to 10 parts by weight of a cyanurate crosslinking aid, 50 to 150 parts by weight of calcined clay, and 1 to 1 to 100 parts by weight of silicic anhydride to 100 parts by weight of ethylene propylene rubber whose thin skin part has an iodine value of 20 or less.
3. The round electrical cable for oil wells according to claim 1, which is formed of a composition containing 10 parts by weight or 1 to 10 parts by weight of hydrosilicic acid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1126124A JPH02304814A (en) | 1989-05-19 | 1989-05-19 | Round type electric cable for oil well |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1126124A JPH02304814A (en) | 1989-05-19 | 1989-05-19 | Round type electric cable for oil well |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02304814A true JPH02304814A (en) | 1990-12-18 |
Family
ID=14927250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1126124A Pending JPH02304814A (en) | 1989-05-19 | 1989-05-19 | Round type electric cable for oil well |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02304814A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006095959A1 (en) * | 2005-03-11 | 2006-09-14 | Ls Cable Ltd. | Gap-type overhead transmission line and manufacturing method thereof |
CN103345967A (en) * | 2013-07-04 | 2013-10-09 | 中国石油化工股份有限公司 | Double-insulation double-protective-sleeve electric submersible pump electric cable |
CN103578636A (en) * | 2013-10-11 | 2014-02-12 | 泛亚电缆集团有限公司 | Metallic shielding wrapping reinforced rubber-jacketed flexible cable for coal cutter |
CN103578640A (en) * | 2013-10-18 | 2014-02-12 | 泛亚电缆集团有限公司 | Environment-protection power cable for mine |
CN103578637A (en) * | 2013-10-18 | 2014-02-12 | 泛亚电缆集团有限公司 | Moving metal shielding monitoring rubber jacketed flexible cable for coal mine |
CN105427932A (en) * | 2015-11-18 | 2016-03-23 | 无锡市明珠电缆有限公司 | Halogen-free low-smoke and flame-retardant metallic shield monitoring type rubber jacketed flexible cable and production method therefor |
CN106297969A (en) * | 2015-05-14 | 2017-01-04 | 无锡市苏南电缆有限公司 | A kind of shielding supervision type cable |
CN106298022A (en) * | 2016-11-19 | 2017-01-04 | 张红伟 | A kind of novel flame-retardant aluminium alloy cable |
-
1989
- 1989-05-19 JP JP1126124A patent/JPH02304814A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006095959A1 (en) * | 2005-03-11 | 2006-09-14 | Ls Cable Ltd. | Gap-type overhead transmission line and manufacturing method thereof |
CN103345967A (en) * | 2013-07-04 | 2013-10-09 | 中国石油化工股份有限公司 | Double-insulation double-protective-sleeve electric submersible pump electric cable |
CN103578636A (en) * | 2013-10-11 | 2014-02-12 | 泛亚电缆集团有限公司 | Metallic shielding wrapping reinforced rubber-jacketed flexible cable for coal cutter |
CN103578636B (en) * | 2013-10-11 | 2016-02-10 | 泛亚电缆有限公司 | A kind of coal-winning machine metallic shield wrapping bag reinforced rubber sleeve flexible cable |
CN103578640A (en) * | 2013-10-18 | 2014-02-12 | 泛亚电缆集团有限公司 | Environment-protection power cable for mine |
CN103578637A (en) * | 2013-10-18 | 2014-02-12 | 泛亚电缆集团有限公司 | Moving metal shielding monitoring rubber jacketed flexible cable for coal mine |
CN103578637B (en) * | 2013-10-18 | 2016-03-30 | 泛亚电缆有限公司 | A kind of moving metal shield monitor type rubber sleeve soft cable for coal mine |
CN106297969A (en) * | 2015-05-14 | 2017-01-04 | 无锡市苏南电缆有限公司 | A kind of shielding supervision type cable |
CN105427932A (en) * | 2015-11-18 | 2016-03-23 | 无锡市明珠电缆有限公司 | Halogen-free low-smoke and flame-retardant metallic shield monitoring type rubber jacketed flexible cable and production method therefor |
CN106298022A (en) * | 2016-11-19 | 2017-01-04 | 张红伟 | A kind of novel flame-retardant aluminium alloy cable |
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